<?php
/**
 * Smarty Internal Plugin Resource Stream
 *
 * Implements the streams as resource for Smarty template
 *
 * @package Smarty
 * @subpackage TemplateResources
 * @author Uwe Tews
 * @author Rodney Rehm
 */

/**
 * Smarty Internal Plugin Resource Stream
 *
 * Implements the streams as resource for Smarty template
 *
 * @link http://php.net/streams
 * @package Smarty
 * @subpackage TemplateResources
 */
class Smarty_Internal_Resource_Stream extends Smarty_Resource_Recompiled {
	
	/**
	 * populate Source Object with meta data from Resource
	 *
	 * @param $source Smarty_Template_Source
	 *       	 source object
	 * @param $_template Smarty_Internal_Template
	 *       	 template object
	 * @return void
	 */
	public function populate(Smarty_Template_Source $source, Smarty_Internal_Template $_template = null) {
		$source->filepath = str_replace ( ':', '://', $source->resource );
		$source->uid = false;
		$source->content = $this->getContent ( $source );
		$source->timestamp = false;
		$source->exists = ! ! $source->content;
	}
	
	/**
	 * Load template's source from stream into current template object
	 *
	 * @param $source Smarty_Template_Source
	 *       	 source object
	 * @return string template source
	 * @throws SmartyException if source cannot be loaded
	 */
	public function getContent(Smarty_Template_Source $source) {
		$t = '';
		// the availability of the stream has already been checked in
		// Smarty_Resource::fetch()
		$fp = fopen ( $source->filepath, 'r+' );
		if ($fp) {
			while ( ! feof ( $fp ) && ($current_line = fgets ( $fp )) !== false ) {
				$t .= $current_line;
			}
			fclose ( $fp );
			return $t;
		} else {
			return false;
		}
	}
	
	/**
	 * modify resource_name according to resource handlers specifications
	 *
	 * @param $smarty Smarty
	 *       	 Smarty instance
	 * @param $resource_name string
	 *       	 resource_name to make unique
	 * @return string unique resource name
	 */
	protected function buildUniqueResourceName(Smarty $smarty, $resource_name) {
		return get_class ( $this ) . '#' . $resource_name;
	}
}

?>